Title :
Power constrained multiple signaling in digital image watermarking
Author :
Huang, J. ; Elmasry, G.F. ; Shi, Y.Q.
Author_Institution :
Dept. of Electron. Eng., Shantou Univ., Guangdong, China
Abstract :
A watermark signal, which is a unique sequence of random variables, by itself does not give a decisive indication of ownership. This work addresses the need to include meaningful information such that a string of English characters, numbers, and punctuation is embedded within the watermark signal, while the signal remains a sequence of random variables. We attempt to provide answers for (1) the maximum number of symbols the watermark signal can carry, and (2) the most practical and reliable way to implement this. We approached this problem as power constrained multiple signaling over an AWGN channel
Keywords :
AWGN channels; copyright; image coding; random processes; security of data; sequences; signal detection; AWGN channel; English characters; copyright; digital image watermarking; image coding; legal ownership protection; meaningful information; numbers; power constrained multiple signaling; punctuation; random variable sequence; simulation results; watermark signal; watermark signal detection; AWGN channels; Additive noise; Additive white noise; Digital images; Gaussian noise; Pixel; Random variables; Robustness; Signal to noise ratio; Watermarking;
Conference_Titel :
Multimedia Signal Processing, 1998 IEEE Second Workshop on
Conference_Location :
Redondo Beach, CA
Print_ISBN :
0-7803-4919-9
DOI :
10.1109/MMSP.1998.738967
